Patents by Inventor Mark Stewart

Mark Stewart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260207118
    Abstract: A device and method for monitoring electromyographic signals at a wearable health-data device that selectively monitors bioelectrical signals of a human body on a single limb. The device, such as a smart-watch or bracelet, has a body with a surface having at least two electrical contacts that are placed apart from each other and conductively held against the human body such that a bioelectrical electrical signal is passed between the two electrical contacts. There can be a computer platform contained within or on the device body that selectively monitors bioelectrical signals, isolates one or more electromyographic signals within the monitored bioelectrical signals, compiles respiratory effort data from the one or more electromyographic signals, and selectively outputs the respiratory effort data. An existing health-data device, with one body-facing contact, can also be modified with a fitting that allows dual contacts to be simultaneously held against the human body.
    Type: Application
    Filed: November 17, 2023
    Publication date: July 23, 2026
    Inventors: Mark Stewart, Rena Orman
  • Publication number: 20260007672
    Abstract: The invention relates to compounds of formula (I), and related aspects.
    Type: Application
    Filed: September 9, 2025
    Publication date: January 8, 2026
    Applicant: NRG Therapeutics Ltd
    Inventors: Neil MILLER, Gilles OUVRY, Richard RUTTER, Tammy LADDUWAHETTY, Christopher THOMSON, Jan KULAGOWSKI, Michael ROWLEY, Andrew TUFFNELL, Gabriel NEGOITA-GIRAS, Mark STEWART, Rachel ARMSTRONG, Susan BOYD
  • Patent number: 12491185
    Abstract: The invention relates to compounds of formula (I), and related aspects.
    Type: Grant
    Filed: January 16, 2025
    Date of Patent: December 9, 2025
    Assignee: NRG THERAPEUTICS LTD
    Inventors: Neil Miller, Gilles Ouvry, Richard Rutter, Tammy Ladduwahetty, Christopher Thomson, Jan Kulagowski, Michael Rowley, Andrew Tuffnell, Gabriel Negoita-Giras, Mark Stewart, Rachel Armstrong, Susan Boyd
  • Publication number: 20250177397
    Abstract: The invention relates to compounds of formula (I), and related aspects.
    Type: Application
    Filed: January 16, 2025
    Publication date: June 5, 2025
    Applicant: NRG Therapeutics Ltd
    Inventors: Neil MILLER, Gilles OUVRY, Richard RUTTER, Tammy LADDUWAHETTY, Christopher THOMSON, Jan KULAGOWSKI, Michael ROWLEY, Andrew TUFFNELL, Gabriel NEGOITA-GIRAS, Mark STEWART, Rachel ARMSTRONG, Susan BOYD
  • Publication number: 20250169878
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Application
    Filed: December 17, 2024
    Publication date: May 29, 2025
    Inventors: Mark Stewart, Steven J. Fraasch
  • Patent number: 12207866
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Grant
    Filed: November 6, 2023
    Date of Patent: January 28, 2025
    Assignee: Medtronic, Inc.
    Inventors: Mark Stewart, Steven J. Fraasch
  • Patent number: 12201353
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Grant
    Filed: March 5, 2024
    Date of Patent: January 21, 2025
    Assignee: Medtronic, Inc.
    Inventors: Mark Stewart, Steven J. Fraasch
  • Patent number: 12150701
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Grant
    Filed: January 5, 2024
    Date of Patent: November 26, 2024
    Assignee: Medtronic, Inc.
    Inventors: Mark Stewart, Steven J. Fraasch
  • Patent number: 12150700
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between O?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: November 26, 2024
    Assignee: Medtronic, Inc.
    Inventors: Mark Stewart, Steven J. Fraasch
  • Publication number: 20240252236
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Application
    Filed: March 5, 2024
    Publication date: August 1, 2024
    Inventors: Mark Stewart, Steven J. Fraasch
  • Publication number: 20240138908
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between Ops and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 2, 2024
    Inventors: Mark Stewart, Steven J. Fraasch
  • Publication number: 20240122497
    Abstract: Two biomarkers are provided for obstructive apnea. A first biomarker determines amplitude and timing of inspiratory efforts from a bioelectric signal. The respiratory rate is compared with a normal pre-detection rate, and the amplitude of the effort is compared with a normal amplitude. The obstructive apnea is likely present if a series of inspiratory efforts are above a normal amplitude and with increasing amplitude, but at a normal rate. A second biomarker determines heart rate and respiratory rate. A normal lower threshold for heartbeat interval is established, and if subthreshold events occur (short RR intervals), a commencement time for each sequence of subthreshold events is compared for a respiratory rate-normalized window. If the number of subthreshold events exceeds a minimum for the window, obstructive apnea is likely present.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 18, 2024
    Inventors: Mark Stewart, Richard Kollmar, Jason Lazar
  • Publication number: 20240065760
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Inventors: Mark Stewart, Steven J. Fraasch
  • Patent number: 11844605
    Abstract: Two biomarkers are provided for obstructive apnea. A first biomarker determines amplitude and timing of inspiratory efforts from a bioelectric signal. The respiratory rate is compared with a normal pre-detection rate, and the amplitude of the effort is compared with a normal amplitude. The obstructive apnea is likely present if a series of inspiratory efforts are above a normal amplitude and with increasing amplitude, but at a normal rate. A second biomarker determines heart rate and respiratory rate. A normal lower threshold for heartbeat interval is established, and if subthreshold events occur (short RR intervals), a commencement time for each sequence of subthreshold events is compared for a respiratory rate-normalized window. If the number of subthreshold events exceeds a minimum for the window, obstructive apnea is likely present.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 19, 2023
    Assignee: The Research Foundation for SUNY
    Inventors: Mark Stewart, Richard Kollmar, Jason Lazar
  • Publication number: 20230355303
    Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between O?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.
    Type: Application
    Filed: June 6, 2023
    Publication date: November 9, 2023
    Inventors: Mark Stewart, Steven J. Fraasch
  • Publication number: 20230263459
    Abstract: The present disclosure relates to a system for prevention of sudden death that includes a wearable seizure detection device; a base unit; and a computer, the computer configured to receive input from the seizure detection device and trigger the base unit to release oxygen under a condition effective to enrich an environmental oxygen level and prevent sudden death when the input indicates a seizure. Also disclosed is a portable system for preventing sudden death, where the system includes an oronasal mask; a compressed oxygen cartridge, wherein the compressed oxygen cartridge is coupled to the oronasal mask; and a fastener, wherein the fastener is coupled to the oronasal mask, wherein the system releases oxygen upon activation under a condition effective to enrich an environmental oxygen level and prevent sudden death. Further disclosed are methods of preventing sudden death comprising enriching an environmental oxygen level for a subject using the systems described.
    Type: Application
    Filed: May 21, 2021
    Publication date: August 24, 2023
    Inventors: Mark STEWART, Richard KOLLMAR
  • Patent number: 11729625
    Abstract: Associating a user service with a telephony identifier. The user service is accessible by a user of a telephony device via an application on the telephony device. The telephony device is operable in a radio telephony network (RTN) and is contactable via the telephony identifier when operating in the RTN. Network equipment: communicates, between the network equipment and the application on the telephony device, first data comprising a communicated token; receives, from the telephony device, second data comprising a received token, wherein the second data is received from the telephony device via an RTN-native service; receives, from a network node in the RTN, the telephony identifier in control signalling associated with the RTN-native service; and based at least on correlating the received token with the communicated token, associates the received telephony identifier with the user service.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: August 15, 2023
    Assignee: Metaswitch Networks Ltd.
    Inventor: Mark Stewart
  • Patent number: 11648971
    Abstract: A foldable golf trolley comprising a chassis; at least one electrically powered rear drive wheel; a wheel support arm mounted to the front of the chassis supporting a front wheel; a stabilizer arm mounted to the rear of the chassis supporting a stabilizer wheel; a main support mounted to the chassis and a handle mounted to the main support; wherein the main support, the wheel support arm and the stabilizer arm are rotatably mounted to the chassis and movable between an operative configuration and a folded configuration; and gears connecting the stabilizer arm and main support, wherein rotation of the main support between the operative configuration and the folded configuration cause rotation of the stabilizer arm between the operative configuration and the folded configuration.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: May 16, 2023
    Assignee: STEWART GOLF LIMITED
    Inventors: Mark Stewart, Jon Stewart-Miller, David Funnell, Duncan Ross Stewart
  • Publication number: 20220030422
    Abstract: Associating a user service with a telephony identifier. The user service is accessible by a user of a telephony device via an application on the telephony device. The telephony device is operable in a radio telephony network (RTN) and is contactable via the telephony identifier when operating in the RTN. Network equipment: communicates, between the network equipment and the application on the telephony device, first data comprising a communicated token; receives, from the telephony device, second data comprising a received token, wherein the second data is received from the telephony device via an RTN-native service; receives, from a network node in the RTN, the telephony identifier in control signalling associated with the RTN-native service; and based at least on correlating the received token with the communicated token, associates the received telephony identifier with the user service.
    Type: Application
    Filed: November 10, 2020
    Publication date: January 27, 2022
    Inventor: Mark STEWART
  • Patent number: D954381
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: June 7, 2022
    Assignee: STEWART GOLF LLC
    Inventors: Jon Stewart-Miller, David Funnell, Mark Stewart, Duncan Stewart